This is a lithograph about a scientific observation by the Reuven Ramaty High Energy Solar Spectroscopic Imager, or RHESSI, spacecraft. Learners will read about a chance observation of a gamma-ray burst in 2002 that has shed new light on the...(View More) mysterious source of these immense explosions.(View Less)

This is a resource that explains the rationale behind the multiple time zone divisions in the United States. Learners will work through a problem set to practice calculating the time in one time zone, given the time in another time zone. This is...(View More) activity 9 from the educator guide, Exploring Magnetism: Magnetic Mysteries of the Aurora.(View Less)

This is a user's guide that contains background science and technology information for the Geomagnetic Event Observatory Network by Students program, or GEONS. Learners can review the role that terrestrial magnetism plays in shaping a number of...(View More) important Earth systems. The guide also explains the basic operating principles behind magnetometers, particularly the magnetometer system used in the GEONS program.(View Less)

This is a poster about radiation in space. Learners can read about the Van Allen belts and how NASA's Van Allen Probes are investigating the influence of the Sun's energy on Earth. The activity version also includes math problems, a vocabulary...(View More) matching game, a communication research challenge, and a toolbox of web resources.(View Less)